Russian Journal of Physical Chemistry B

, Volume 8, Issue 8, pp 1009–1018 | Cite as

Thermohydrodynamics of supercritical fluids in the presence of temperature heterogeneities



Main regularities of heat gravitational convection are considered near the thermodynamic critical point. Special physical properties of supercritical fluids (strong increase of heat capacity at constant pressure and coefficients of heat extension and isothermal compressibility, convergence to zero of the coefficient of thermal diffusivity upon approximation to a critical point) lead to the features of convective flow and heat transfer. Hydrodynamic behavior of supercritical fluids is characterized by intensification of internal movement, decrease in the spatial scale of convection, formation of a piston effect, temporal multiresolution of dynamic and heat processes, and the effect of stratification.


heat gravitational convection thermodynamic critical point adiabatic heating (piston effect) stratification adiabatic temperature gradient 


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© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  1. 1.Ishlinskii Institute for Problems in MechanicsMoscowRussia

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